Is this of any help to you?. It's a bit old now, but should prove useful to other members who have different hardware / software versions.
Software S/W Capacity Compatible with S/W
NTSK04AC 22-46 32 Meg 22-46
NTSK04AG 23-47 32 Meg 23-47
NTSK04AK 24-25 40 Meg 24-25
NTDK21AA Blank 32 Meg Rlse 22.08D – 23.47
NTDK81AA Blank 40 Meg Rlse 23.47 – 24.25
NTTK13AA Blank 48 Meg Rlse 24.25 – 25.XX &
Succession 3
NTTK25AA Blank 48 Meg 25.XX & Succession 3
System Minimum Compatible with S/W
SSC/MSC
11C/Cabinet NTDK20CA Rlse 24.25 with 4 – 5 cabinets –
25.XX & Succession 3
NTDK20EA Main cabinet when using IP
Expansion & NTDK20CA For
each IP Expansion cabinet
Chassis NTDK97AB
NTDK20EA Main & IP Expansion Chassis
when using IP Expansion
Succession 1000 NTDK20EA Call Server & Media Gateway
Succession Branch Office NTDK20FA
If an existing Option 11C system is equipped with a controller card NTDK20AB. It can be upgraded to an NTDK20CA with a field upgrade kit NTDK19AA. As of July 1999, all controller cards shipped in Europe have been a minimum of NTDK20DA, which is compatible with Release 25 and Succession 3.
A system upgrading to Release 25 or Succession 3 must replace its
NTDK21 (32 MB) or
NTDK81 (40 MB) based software daughterboard, with an
NTTK13AA (48 MB) or NTTK25AA daughterboard.
Make sure that you have upgraded the bootcode on the SSC prior to upgrading the software daughterboard. To verify the size of the software daughterboard & for installation instructions, refer to NTP upgrade manual Chapter 9.
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